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Blend Shape

Intro​

Blend between multiple Shapes with matching point counts.

UI​

Mode - Set a blending mode:

  • Replace - Each Blend Shape replaces the Shape(s) before it.
  • Deltas - A delta is the difference between the original Shape and the Blend Shape(s). By using this mode, Shapes will be 'additive'.

Use the +Add button to create additional indices.

  • Input Shape - Connect a Shape to be blended to.
  • Strength - Set the bias for each blend shape.
Point Count

The Blend Shape requires Shapes to have a matching Point Count. The Mesh Explorer can be used to check Point Counts but note that a Point Count does not directly correlate with the number of points visible in the Viewport. See Paths for more information.

See Morph to animate between Shapes with different point counts.

Example
  1. Go Shape > Create Editable Primitives. With this checked, any Shapes created with the tools will be Editable Shapes.
  2. Hold Option/Alt and click the Ellipse tool to create a Shape (Shape1).
  3. Select Shape1 and then either go Edit > Duplicate or Cmd/Ctrl + D to duplicate it (Shape2).
  4. Adjust Shape2's points by using the Edit Shape tool.
  5. Hide Shape2 from the Viewport by clicking the eye icon in the Scene Window.
  6. Create a Blend Shape Behaviour.
  7. Connect shape2.id→blendShape.0.inputShape (the first Array).
  8. Set Strength to 0 on the Array.
  9. Connect blendShape.id→shape1.deformers.

Scrubbing the Blend Shape's Strength will blend Shape1 to Shape2 and back.